Although there is only a niche market for USB speakerphones, they still play an important role in the UC endpoint ecosystem. These devices are designed for impromptu meetings or group conversations in locations without a dedicated conferencing device. The Plantronics Calisto 825 in particular has a remote microphone, as shown in Figure 24.3. The remote microphone makes this speakerphone perfect for leading meetings in an auditorium or across the room from the device.